dc.contributor.author | Ball, Richard D. | |
dc.contributor.author | Barontini, Andrea | |
dc.contributor.author | Candido, Alessandro | |
dc.contributor.author | Carrazza, Stefano | |
dc.contributor.author | Cruz-Martinez, Juan | |
dc.contributor.author | Del Debbio, Luigi | |
dc.contributor.author | Forte, Stefano | |
dc.contributor.author | Giani, Tommaso | |
dc.contributor.author | Hekhorn, Felix | |
dc.contributor.author | Kassabov, Zahari | |
dc.contributor.author | Laurenti, Niccolò | |
dc.contributor.author | Magni, Giacomo | |
dc.contributor.author | Nocera, Emanuele R. | |
dc.contributor.author | Rabemananjara, Tanjona R. | |
dc.contributor.author | Rojo, Juan | |
dc.contributor.author | Schwan, Christopher | |
dc.contributor.author | Stegeman, Roy | |
dc.contributor.author | Ubiali, Maria | |
dc.date.accessioned | 2024-07-08T06:18:05Z | |
dc.date.available | 2024-07-08T06:18:05Z | |
dc.date.issued | 2024 | |
dc.identifier.citation | Ball, R. D., Barontini, A., Candido, A., Carrazza, S., Cruz-Martinez, J., Del Debbio, L., Forte, S., Giani, T., Hekhorn, F., Kassabov, Z., Laurenti, N., Magni, G., Nocera, E. R., Rabemananjara, T. R., Rojo, J., Schwan, C., Stegeman, R., & Ubiali, M. (2024). The path to N3LO parton distributions. <i>European Physical Journal C</i>, <i>84</i>, Article 659. <a href="https://doi.org/10.1140/epjc/s10052-024-12891-7" target="_blank">https://doi.org/10.1140/epjc/s10052-024-12891-7</a> | |
dc.identifier.other | CONVID_220977168 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/96320 | |
dc.description.abstract | We extend the existing leading (LO), next-to-leading (NLO), and next-to-next-to-leading order (NNLO) NNPDF4.0 sets of parton distribution functions (PDFs) to approximate next-to-next-to-next-to-leading order (aN3LO). We construct an approximation to the N3LO splitting functions that includes all available partial information from both fixed-order computations and from small and large x resummation, and estimate the uncertainty on this approximation by varying the set of basis functions used to construct the approximation. We include known N3LO corrections to deep-inelastic scattering structure functions and extend the FONLL general-mass scheme to 𝑂(𝛼𝑠3) accuracy. We determine a set of aN3LO PDFs by accounting both for the uncertainty on splitting functions due to the incomplete knowledge of N3LO terms, and to the uncertainty related to missing higher corrections (MHOU), estimated by scale variation, through a theory covariance matrix formalism. We assess the perturbative stability of the resulting PDFs, we study the impact of MHOUs on them, and we compare our results to the aN3LO PDFs from the MSHT group. We examine the phenomenological impact of aN3LO corrections on parton luminosities at the LHC, and give a first assessment of the impact of aN3LO PDFs on the Higgs and Drell–Yan total production cross-sections. We find that the aN3LO NNPDF4.0 PDFs are consistent within uncertainties with their NNLO counterparts, that they improve the description of the global dataset and the perturbative convergence of Higgs and Drell–Yan cross-sections, and that MHOUs on PDFs decrease substantially with the increase of perturbative order. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartofseries | European Physical Journal C | |
dc.rights | CC BY 4.0 | |
dc.title | The path to N3LO parton distributions | |
dc.type | research article | |
dc.identifier.urn | URN:NBN:fi:jyu-202407085147 | |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.relation.issn | 1434-6044 | |
dc.relation.volume | 84 | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © The Author(s) 2024 | |
dc.rights.accesslevel | openAccess | fi |
dc.type.publication | article | |
dc.relation.grantnumber | 346326 | |
dc.relation.grantnumber | 358090 | |
dc.format.content | fulltext | |
dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |
dc.relation.doi | 10.1140/epjc/s10052-024-12891-7 | |
dc.relation.funder | Research Council of Finland | en |
dc.relation.funder | Research Council of Finland | en |
dc.relation.funder | Suomen Akatemia | fi |
dc.relation.funder | Suomen Akatemia | fi |
jyx.fundingprogram | Centre of Excellence, AoF | en |
jyx.fundingprogram | Academy Research Fellow, AoF | en |
jyx.fundingprogram | Huippuyksikkörahoitus, SA | fi |
jyx.fundingprogram | Akatemiatutkija, SA | fi |
jyx.fundinginformation | R.D.B, L.D.D, and R.S. are supported by the U.K. Science and Technology Facility Council (STFC) consolidated grants ST/T000600/1 and ST/X000494/1. F.H. is supported by the Academy of Finland project 358090 and is funded as a part of the Center of Excellence in Quark Matter of the Academy of Finland, project 346326. E.R.N. is supported by the Italian Ministry of University and Research (MUR) through the “Rita Levi-Montalcini” Program. M.U. and Z.K. are supported by the European Research Council under the European Union’s Horizon 2020 research and innovation Programme (grant agreement n.950246), and partially by the STFC consolidated grant ST/T000694/1 and ST/X000664/1. J.R. is partially supported by NWO, the Dutch Research Council. C.S. is supported by the German Research Foundation (DFG) under reference number DE 623/6-2. | |
dc.type.okm | A1 | |